CALX · Calix, Inc

$35.84 -1.63 (-4.35%) At close · Jul 22

Market Cap

$2.26B

62.96M

Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.

Short Squeeze Score

63/100

Short interest 9.2% of shares — P88 Days to cover 3.9 — P70 Price vs VWAP -9.8% — P28 Short-volume trend -27.2% — P4 Short interest change +3.4% — P56 Worst FTD 0.00% of shares — P23 Earnings soon +10

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-30). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.

1M 3M 6M 1Y 5Y All

Short Interest History

Settlement Date	Current Position	Previous Position	Change	Avg Daily Volume	Days to Cover
2026-06-30	5,809,290	5,618,541	+190,749	1,505,699	3.86
2026-06-15	5,618,541	5,969,343	-350,802	1,078,713	5.21
2026-05-29	5,969,343	5,401,085	+568,258	832,434	7.17
2026-05-15	5,401,085	6,058,794	-657,709	742,088	7.28
2026-04-30	6,058,794	6,014,347	+44,447	1,536,405	3.94
2026-04-15	6,014,347	5,931,459	+82,888	827,471	7.27
2026-03-31	5,931,459	5,346,230	+585,229	948,733	6.25
2026-03-13	5,346,230	4,931,529	+414,701	629,485	8.49
2026-02-27	4,931,529	5,059,227	-127,698	1,037,755	4.75
2026-02-13	5,059,227	3,695,833	+1,363,394	1,695,288	2.98
2026-01-30	3,695,833	3,149,393	+546,440	1,417,194	2.61
2026-01-15	3,149,393	2,705,195	+444,198	881,372	3.57
2025-12-31	2,705,195	2,675,784	+29,411	665,422	4.07
2025-12-15	2,675,784	2,530,330	+145,454	838,750	3.19
2025-11-28	2,530,330	2,367,335	+162,995	709,647	3.57
2025-11-14	2,367,335	1,960,620	+406,715	840,178	2.82
2025-10-31	1,960,620	2,078,964	-118,344	671,936	2.92
2025-10-15	2,078,964	2,043,994	+34,970	462,807	4.49
2025-09-30	2,043,994	2,257,686	-213,692	576,358	3.55
2025-09-15	2,257,686	2,260,970	-3,284	507,401	4.45
2025-08-29	2,260,970	2,343,451	-82,481	547,569	4.13
2025-08-15	2,343,451	2,539,903	-196,452	669,636	3.50
2025-07-31	2,539,903	2,880,467	-340,564	1,047,022	2.43

Showing 1–23 of 23 settlements

Key facts CIK 1406666 CUSIP 13100M509 13F (30d) 36 filings 35 filers Visit website Investor relations